new Species of African Dormice. 287 



Grapldurus brockmani, sp. n. 



A medium-sized form allied to the foregoing species, but 

 rather smaller in size, very much paler in colour, and with 

 larger ears. 



Size of body rather less than in G. lorraineus, tail about 

 equal in length to that of the head and body together; ears 

 comparatively large. Fur soft and of medium length. 

 General colour of upper surface of body pale buffi ih brown 

 (snuff-brown no. 1 mixed with smoke-grey no. 1, ' Repertoire 

 de Couleurs'), rather darker down the middle of the back. 

 Flanks very similar in colour to back, the huffish brown of 

 the d6rsal surface sharply marked off from the white colora- 

 tion of the belly. Individual hairs of back dark slaty grey, 

 with light buffish-brown tips; many of the longer hairs, 

 especially on the posterior part of the back, with dark 

 brownish tips. Muzzle, and face between eyes, similar in 

 colour to back. Eyes surrounded by rather inconspicuous 

 brownish rings. Dark markings on muzzle, in front of eyes, 

 almost entirely absent. Cheeks white, the hairs white 

 throughout, as in G. parvus, True. Sides of neck below 

 ears white ; hairs dark slaty grey, with long white tips. 

 Backs of hands and feet coveied with short white hairs. 

 Under surface of body white tinted with cream (creamy 

 white no. 1, ' Repertoire'). Hairs of belly dark slate-black 

 with long white tips. Hairs on chin and lower lip white. 

 Tail more or less cylindrical at base, gradually becoming 

 bushy towards the tip, but never to such a /narked degree as 

 in G. microtis, Noack, the hairs at the extreme tip measuring 

 about 14 mm. in length. Uppersideof tail greyish chocolate, 

 hairs brownish drab, with white tips; under surface lighter 

 in colour, owing to the white tips being longer and more 

 prominent. 



Skull rather similar to that of G. lorraineus, but smaller 

 and with shorter nasals. Teeth very small, the upper cheek- 

 teeth measuring only 3 mm. in length. Auditory bulhe 

 comparatively large and inflated. 



Dimensions of the type (measured in the flesh) : — 



Head and body 81 mm. ; tail 80 ; hind foot 15 ; ear .16. 



Skull (occipital region broken) : basal length 215 ; basilar 

 length 18*5 ; greatest zygomatic breadth 14; breadth of 

 cranium (across squamosal region) 11*5 ; greatest length of 

 nasals 8'8 ; greatest breadth across nasals 3"3 ; least breadth 

 across nasals 2 ; interorbital breadth 3*7; palatal length 10; 

 palatilar length 7'5; width of palate (inside m 1 ) 3; width 



